There are about[clarification needed] four commissioned ships in the Estonian Navy, including three auxiliary ships; the displacement of the navy is under 10,000 tonnes making it one of the smallest navies in the world. Ship prefix is EML. The Estonian Navy has been reduced severely since the second half of the decade mainly due to insufficient maintenance, lack of funding and thereby training of personnel and timely replacement of equipment. Another possible setback could be attributed to Estonia's domestic lack of maritime defence policy strategy as the current navy neither operates a single traditional warship that could perform defensive or offensive operations nor coastal defense capabilities and maritime landing operations along its long and island rich territorial waters.

In general, the Estonian Navy in the terms of maritime naval terminology can be classified between green-water and brown-water navies, having at the same time both naval type capabilities. Today green-water navies are generally defined as navies with frigates or corvettes operating in coastal and regional areas. As green-water navies are usually capable of sending their naval ships overseas on friendly port-visits, the Estonian Navy has participated numerous times in NATO´s naval joint-exercises. A brown-water navy usually lacks the ability for sustained long-distance combat operations, and the current Estonian naval doctrine does not envisage deployments far away from its home bases. Although the Merevägi is a hybrid brown/green-water navy, it does not lack offensive capability, as its ships can be armed with powerful anti-ship missiles.

In 2010, the Ministry of Defence confirmed an interest to obtain a number of warships in the terms of gunboats for the purpose of ensuring defence of territorial waters and improving maritime surveillance. In late 2011, despite the changes in general defence policy and the armed forces reforms that are to take place in the coming years it is still not certain if, what type and number of the vessels will be obtained by the navy.

The “Merevägi” was founded November 21 in 1918. The foundation and development of the Estonian Navy relies greatly on the British Navy which operated in the Gulf of Finland as an ally to Estonia during the Estonian War of Independence. The first Estonian navy ships, minecruisers Lennuk and Wambola, were gifts from the British Royal Navy after they had been captured from the Russian Baltic Fleet in 1919.

The Meredessantpataljon, was a short lived marine infantry - Naval landing battalion of the Estonian Defence Forces subject to the Estonian Navy. The battalion was created from the crews of the Estonian surface warships and was based in Tallinn.

Since the end of the 19th century the Russian Empire began to build coastal fortresses and naval strongholds in Estonia which was annexed to empire after the Great Northern War in 1721. Tallinn having been historically an important trading center between the East and the West became one of the main naval bases of the Imperial RussianBaltic fleet. A systematic coastal defence network and naval gun installations were ordered and the construction works began at the end of the 1890s.

During the Estonian War of Independence and after the Treaty of Tartu the Estonian Navy began to rebuild and develop the coastal defence network. From 1918 to 1940 Estonia invested millions of kroons into the renovation and development of the coastal defence. By 1939 the coastal batteries presented a considerable naval force and were considered among the Estonian Navy elite forces. During World War II and later the Soviet occupation of Estonia, little has remained of the former coastal defence lines and fortifications. Today some buildings and firing positions can be seen at various places of which the best preserved ones are located on the island of Aegna.

In 1998 the Baltic Naval Squadron BALTRON was inaugurated. The main responsibility of BALTRON is to improve the co-operation between the Baltic States in the areas of naval defence and security. Constant readiness to contribute units to NATO-led operations is assured through BALTRON.

Each Baltic state appoints one or two ships to BALTRON for certain periods and staff members for one year. Service in BALTRON provides both, the crews and staff officers, with an excellent opportunity to serve in an international environment and acquire valuable experience in mine countermeasures. Estonia provides BALTRON with on-shore facilities for the staff.

Since 1995 Estonian Navy ships have participated in most of the major international exercises and operations carried out in the Baltic Sea. Even though it was not until 1993 when the Navy was re-established and despite the fact that it incorporates one of the smallest fleets in the world, the young crews of the Navy ships have demonstrated excellent interoperability during international exercises and have proved to be equal partners with other navies.

The top priority for the Navy is the development of mine countermeasures capability that is also one of the Navy's peacetime responsibilities: during World War I and II more than 80,000 sea mines were laid in the Baltic Sea. Since 1995 a number of mine clearance operations have been carried out in Estonian waters by the Estonian Mineships Division in close co-operation with other navies of the Baltic Sea region in order to find and dispose of ordnance and contribute to safe seagoing.[2]

The Estonian Navy uses a small number of different vessels and weapon-systems. Since the restoration of the Estonian Defence Forces on 3 September 1991 and the Estonian Navy on 1 July 1993 the naval force has developed tremendously. Then-Commander Estonian Naval Defence Forces, Commodore Roland Leit, was interviewed by Jane's Defence Weekly on 9 July 1994. 'When the Soviet Navy left the Tallinn Naval Base, they sabotaged the facilities, and scuttled about 10 of their ships in the harbour. They broke all the windows, all the heating, and all the electricity equipment. When they came in 1939 they took over our port facilities in good order. Now they are leaving us a mess, he said bitterly.' 'We got nothing from the Russian Navy. The Griff class patrol craft we got not from them but from a Russian firm that had bought the hulls first. Their navigation and radio systems are broken, too. We hope to have it all repaired and bring the craft into service before the end of the year.'[3]

Although the Soviet legacy's clean-up and military infrastructure rebuilding has taken most of the defence budget resources away from the Navy the armament and equipment has improved a great deal.

Although the Estonian Defence Force has a relatively small selection of combat vessels, the Navy still has a variety of different light-combat craft, coastal patrol-craft and support vessels. The first craft that entered the service in the restored Estonian Navy in 1993 were mainly German background mine-layers and mine-hunters. Within the last 15 years the Navy logistics support has increased year by year. Most of the modern navy vessels have either been received as foreign aid or been bought from Germany, Finland, United Kingdom and Denmark. The Estonian Navy is currently undergoing modernization and will improve the mine warfare division in the following 2 years . The Navy combat division still waits to be restored. Navy combat vessel procurement will be in focus probably between 2015 and 2020.

The “Merevägi” has operated a number of naval bases and war harbors most of them being located on the western coast and on the islands. Till 1939 there were more than 10 smaller and bigger war harbors and bases; including Aegna, Paldiski, Virtsu, Rohuküla, Mõntu, Kuressaare, Kõiguste, Papisaare, Jaagurahu, Tagalaht, Küdema, Sõru, Kärdla, Kallaste, Mustvee and Tallinn harbor. Currently there is only one major naval harbor Miinisadam which located in northern Tallinn. The Miinisadam is a base for the Mineships Division.

Most Estonian Navy officers have been trained in European or US naval academies. In 2003, the Navy established its own Centre of Naval Education and Training (CNET) to train junior petty officers.

Each Baltic State shares its limited training resources with the others. For instance, Estonia provides communications training at the Baltic Naval Communications School in Tallinn and Latvia hosts a common Baltic Naval Diving Training Centre in Liepaja.

According to the long-term defence development plan the Merevägi will receive some new capabilities. Of those new warfare capabilities the procurement of multirole fast patrol boats will be a priority. The operational need for such vessels is likely to ensure defence of territorial waters and to improve maritime surveillance. According to the Ministry of Defence in 2010 such new capability development for the naval forces will cost roughly 100 million krooni. It is not yet certain as to the number or type of vessels which will be procured.[4] In addition to the current capabilities the command and control and shore-to-vessel communications will also be further improved.[5]